Road Trip 2015: The second half of a two-part series about Vietnam's startup scene takes a deeper look at some rare success stories and how the country is fostering -- and hindering -- its homegrown tech community.

Social networking is all about keeping in touch with friends, sharing your experiences and generally feeling as connected as possible to the world around you -- but it's also about posting as many photos as you can to entertain and infuriate your audience in equal measure.